CN105879430A - Oil-gas-water separator - Google Patents
Oil-gas-water separator Download PDFInfo
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- CN105879430A CN105879430A CN201410508479.XA CN201410508479A CN105879430A CN 105879430 A CN105879430 A CN 105879430A CN 201410508479 A CN201410508479 A CN 201410508479A CN 105879430 A CN105879430 A CN 105879430A
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Abstract
The invention discloses an oil-gas-water separator, which belongs to the field of petrochemical industry. The oil-gas-water separator comprises a separator body, a feed port, a feeding distributing pipe, a gas bag, an air exhaust opening, an oil outlet, an oil collection pipe, a water outlet, a water collecting pipe, a transformer and a high voltage introducing port. The oil-gas-water separator is characterized in that two longitudinal partition plates are arranged in the separator body, and the space of the separator body is divided into an oil-water separation chamber, a gas-liquid separation chamber and a draining settlement zone by the longitudinal partition plates. The oil-gas-water separator can effectively increase the efficiency of gas-liquid separation and oil-water separation, has function and effect for combining a three-phase separator and an electric dehydrator, and can reduce equipment investment and equipment scale.
Description
Technical field
The invention belongs to field of petroleum exploitation, be specifically related to the processing equipment of a kind of oilfield Produced Liquid degassing dehydration.
Background technology
Crude oil Produced Liquid from oilfield exploitation out after, containing water, natural gas, need before shipping to carry out to be dehydrated, degassing processes, cleaned crude oil and natural gas after process carry out outer defeated respectively as product, and the water separated can be as the reinjected water of oil well.The separation of oil field mining liquid typically uses three phase separator to process, but the increase along with oil field mining liquid water content, water content in crude oil after three phase separator processes is the most too high, affects the subsequent treatment in oil field, and the situation even causing outer output oil water content the most up to standard occurs.The three phase separator primary structure of existing routine is that crude oil enters from one end of tank body, by gas-liquid pre-separation or be injected directly in tank, tank body top is gas-liquid separation space, bottom is oil-water separation space, it is internally provided with coalescing-plate or gas comb plate, by the way of gravity settling separation, carries out the separation of oil gas water；Its subject matter is that internal structure is complicated, gas-liquid separation space hold is big, oil-water separation is inefficient, it is generally required to multiple stage separation could meet crude oil water containing requirement, causes that number of devices is many, floor space increases.
In recent years, it is improved by the problem that people exist for conventional three phase separator, it is proposed that the three phase separator of some new structures.Chinese patent CN101829441A discloses a kind of three-phase separator for free water, including horizontal tank body, gas-liquid cyclone separator.Being provided with feed liquor dividing plate in tank body, tank body is divided into gas-liquid separation region and oil-water separating region by feed liquor dividing plate.The top of oil-water separating region is provided with distributing slot, and the lower section of distributing slot is provided with perpendicular plate-hanging type electrode.The subject matter that this patent exists is: 1) structure is complicated, and in inner member accounts for tank, space is big, affects the effect of oil-water separation and gas-liquid separation；2) oil water mixture due to flow direction consistent with drops of water fall down direction, have impact on oil-water separation；3) oil water separation process flows unstable, there is flow-disturbing problem.
Summary of the invention
The present invention provides a kind of oil gas water separator, utilize high efficiency electrostatic field dehydration technique, three phase separator dehydrating effect is made to reach the effect that two kinds of equipment of existing three phase separator and electric dehydrator are used in conjunction with, to solve the problem that in prior art, three phase separator separation efficiency is the highest.A kind of oil gas water separator of the present invention disclosure satisfy that the process requirement of the crude oil dehydration degassing in existing oil field, thus reduces oilfield treatments equipment progression, reduces investment.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of oil gas water separator, including separator tank body, charging aperture, charging distribution pipe, gas bag, air vent, oil-out, collection tube, discharge outlet, water collection pipe, transformator and high-tension electricity intake, it is characterized in that: in described separator pot body, be provided with two longitudinal baffles, the space of separator tank body is divided into four regions by longitudinal baffle, the longitudinal baffle left and right sides is oil-water separation room, being gas-liquid separation chamber in the middle of longitudinal baffle, bottom is drainage subsidence district；Described charging aperture is arranged on separator tank base, and charging aperture is connected with charging distribution pipe；It is provided with foam removal silk screen in the gas bag of tank body top, gas bag is provided with air vent；Oil-water separation indoor are provided with battery lead plate, and battery lead plate is connected with transformator by high pressure intake, the separator tank body above oil-water separation room is provided with collection tube and is connected with oil-out；It is provided with water collection pipe and the discharge outlet being connected at separator tank body lower part.
One oil gas water separator of the present invention, its tank skin being further characterized by said two longitudinal baffle and separator tank body is taked to be welded to connect, described longitudinal baffle is that the axial direction being parallel to separator tank body is installed, and the axial direction that also can be perpendicular to separator tank body is installed.
One oil gas water separator of the present invention, it is further characterized by said two longitudinal baffle and separator tank body is separated into oil-water separation room, two, left and right and a middle gas-liquid separation chamber, described gas-liquid separation chamber is 1 with the ratio of two oil-water separation room partition spaces: (3～6), oil-water separation room and gas-liquid separation chamber are not connected more than dividing plate.
One oil gas water separator of the present invention, it is further characterized by described charging distribution axial arranged along separator tank body of pipe, and charging distribution pipe is positioned on gas-liquid liquid level 100～400mm.Having oil outlet on charging distribution pipe, a diameter of the 5 of oil outlet～30mm, spacing is 50～300mm, and oil outlet is the axial horizontal both sides perforate along charging distribution pipe, symmetrical.
One oil gas water separator of the present invention, it is further characterized by axial arranged along separator tank body of described water collection pipe, and water collection pipe is apart from tank bottoms 50～300mm.Uniformly having collection hole on water collection pipe, collect a diameter of the 10～30mm of hole, spacing is 50～300mm, and collecting hole is the direction perforate down along water collection pipe.
One oil gas water separator of the present invention, it is further characterized by axial arranged along separator tank body of described collection tube, collection tube distance separation device tank deck 50～300mm.Uniformly having receipts oilhole on collection tube, receive a diameter of the 5～30mm of oilhole, spacing is 50～300mm, and receiving oilhole is the upwardly-directed perforate along collection tube.
One oil gas water separator of the present invention, it is further characterized by described battery lead plate is horizontal electrode plate or vertical battery lead plate.Described battery lead plate can use metal polar plate, it is possible to uses the metal polar plate of outside coated insulation material.
One oil gas water separator of the present invention, its high-tension electricity being further characterized by described transformator output is alternating current or pulse ac electricity.
A kind of oil gas water separator that the present invention provides, compared with existing three phase separator, has the advantage that
1) profit electrostatic field isolation technics is introduced in three phase separator by the present invention, uses electrostatic field to carry out breakdown of emulsion process, can make the big water droplet that is agglomerated into of crude oil small water droplets, accelerates the speed of drops of water fall down, and ratio is only by the fast several times of gravity settling separation.Improve the efficiency of oil-water separation, reduce water content in crude oil.
2) present invention uses gas-liquid separation and oil-water separation separation to process structure, makes not have in oil-water separation gas, it is ensured that high-voltage electrostatic field safe, run smoothly.
3) present invention uses gas-liquid separation to process structure with oil-water separation separation, makes the type of flow of liquid in oil-water separation be changed into perpendicular flow by bottom horizontal flow sheet, greatly reduces the flow velocity of liquid flowing, promotes the sedimentation of small water drops.
4) present invention is effectively improved the efficiency of gas-liquid separation, oil-water separation, has three phase separator, the function of both electric dehydrators unification and effect, it is possible to reduce equipment investment and equipment scale.
5) reduce the space of gas-liquid separation, add the space of oil-water separation, thus improve the effect of oil-water separation.
6) using this version, the light middle matter crude oil water content after treatment containing 70-80% water can be made to reach less than 0.5%, the heavy crude water content after treatment containing 70-80% water reaches less than 1%.
Below in conjunction withAccompanying drawingThe present invention is described in further detail with embodiment, but does not limit the scope of the invention.
Accompanying drawing explanation
Fig. 1 is one oil gas water separator structural representation of the present invention.
Shown in itAttachedFigure is labeled as: 1-separator tank body, 2-charging aperture, 3-charging distribution pipe, 4-longitudinal baffle, 41-gas-liquid separation chamber, 42-oil-water separation room, 43-drainage subsidence district, 5-air vent, 6-gas bag, 7-foam removal silk screen, 8-battery lead plate, 9-oil-out, 10-collection tube, 11-transformator, 12-high pressure intake, 13-discharge outlet, 14-water collection pipe, 15-gas-liquid liquid level.
Detailed description of the invention
Describe the present invention in detail with specific embodiment below, but these embodiments do not limit the scope of the invention.
A kind of oil gas water separator, it is provided with separator tank body 1, charging aperture 2, charging distribution pipe 3, gas bag 6, air vent 5, oil-out 9, collection tube 10, discharge outlet 13, water collection pipe 14, transformator 11 and high-tension electricity intake 12, two longitudinal baffles 4 it are provided with in separator tank body 1, the space of separator tank body 1 is divided into four regions by longitudinal baffle 4, the longitudinal baffle left and right sides is oil-water separation room 42, being gas-liquid separation chamber 41 in the middle of longitudinal baffle, bottom is drainage subsidence district 43；Raw oil is entered by the charging aperture 2 of tank base, under the effect of the pressure, sprays in separator pot through charging distribution pipe 3 in the ullage space of gas-liquid separation chamber 41, is provided with foam removal silk screen 7, gas bag 6 is provided with air vent 5 in separator tank body 1 top gas bag 6；Being provided with battery lead plate 8 in two oil-water separation rooms 42, left and right, battery lead plate 8 is connected with transformator 11 by high pressure intake 12, and oil-water separation room 42, two, left and right is respectively provided with an oil-out 9 and collection tube 10 at top；Separator tank body 1 bottom is provided with a discharge outlet 13 and water collection pipe 14.
The top of two longitudinal baffles 4 takes to be welded to connect with separator tank body 1 tank skin, two oil-water separation rooms 42 and a gas-liquid separation chamber 41 will be divided in separator, each space is not connected more than dividing plate, longitudinal baffle bottom away from separator pot span from for 300～600mm, near oil-water interfaces or be dipped under oil-water interfaces.
Having oil outlet on charging distribution pipe 3, a diameter of the 5 of oil outlet～30mm, spacing is 50～300mm, and oil outlet is the axial horizontal both sides perforate along charging distribution pipe 3, symmetrical, and charging distribution pipe 3 is positioned on gas-liquid liquid level 100～400mm.Charging distribution axial arranged along separator tank body 1 of pipe 3.
Collection hole is had on water collection pipe 14, collecting a diameter of the 10～30mm of hole, spacing is 50～300mm, and collecting hole is the direction perforate down along distribution pipe, water collection pipe 14 answers distance separation device tank bottoms 50～300mm, and water collection pipe 14 is axial arranged along separator tank body 1.
Having receipts oilhole on collection tube 10, receive a diameter of the 5～30mm of oilhole, spacing is 50～300mm, and receiving oilhole is the upwardly-directed perforate along collection tube 10, and collection tube 10 answers distance separation device tank deck 50～300mm.Collection tube 10 is axial arranged along separator tank body 1.
Battery lead plate 8 uses three levels electrode plate structure, is positioned at the top of oil-water separation room 42.Wherein only having middle level battery lead plate to be connected with transformator 11 by high pressure intake 12, each transformator 11 is connected with one group of battery lead plate 8.
The operating process in actual applications of a kind of oil gas water separator of the present invention is, the raw oil come from oil well is entered by charging aperture 2, the aperture ejection of horizontal symmetry distribution on charging distribution pipe 3, the ullage gas-phase space of gas-liquid separation chamber 41 it is evenly distributed on along separator tank body 1 axis, gas-liquid mixture carries out gas-liquid separation in dropping process, the gas separated flows up, the droplet that gas carries is the most settlement separate, gas is collected by the gas bag 6 at gas-liquid separation chamber 41 top, flowed out by air vent 5 after removing less drop further through foam removal silk screen 7；Isolated liquid in gas-liquid separation chamber 41 bottom in infall process the most settlement separate go out gas；The oil-water separation room 42 separating the entrance left and right sides, lower edge that the downward liquid flow after gas walks around dividing plate 4 flows up, the electric field of battery lead plate 8 composition through top, little water droplet in liquid is agglomerated into big water droplet under electric field action, settle downwards, droplet deposition forms water layer at tank inner bottom part, is then provided with after water collection pipe 14 is collected by separator tank body 1 bottom and flows out through discharge outlet 13；Crude oil after dehydration flows up, the collection tube 10 at top, oil-water separation room 42 receive oil and flow out through oil-out 9.
According to the number of raw oil air content, the ratio between gas-liquid separation chamber 41 and oil-water separation room 42 can be adjusted, it is also possible to according to the operation liquid level of how many adjustment gas-liquids of oil-containing in aerofluxus, reach the technology requirement of plant running.
The present invention is applicable to the dehydration of oil field mining liquid, degassing processes, and can be widely applied to onshore oil field and offshore oilfield.
Claims (10)
1. an oil gas water separator, including separator tank body, charging aperture, charging distribution pipe, gas bag, air vent,
Oil-out, collection tube, discharge outlet, water collection pipe, transformator and high-tension electricity intake, it is characterised in that:
Being provided with two longitudinal baffles in described separator pot body, the space of separator tank body is divided into four by longitudinal baffle
Individual region, the longitudinal baffle left and right sides is oil-water separation room, is gas-liquid separation chamber in the middle of longitudinal baffle, bottom
For drainage subsidence district；Described charging aperture is arranged on separator tank base, and charging aperture is connected with charging distribution pipe
Logical；It is provided with foam removal silk screen in the gas bag of tank body top, gas bag is provided with air vent；Oil-water separation indoor are provided with
Battery lead plate, battery lead plate is connected with transformator by high pressure intake, the separator pot above oil-water separation room
Body is provided with collection tube and is connected with oil-out；It is provided with water collection pipe and the row being connected at separator tank body lower part
The mouth of a river.
Oil gas water separator the most according to claim 1, it is characterised in that: said two longitudinal baffle with point
Tank skin from device tank body is taked to be welded to connect.
Oil gas water separator the most according to claim 1, it is characterised in that: described longitudinal baffle is parallel
Or the axial direction being perpendicular to separator tank body installs.
Oil gas water separator the most according to claim 1, it is characterised in that: described gas-liquid separation chamber and two
The ratio of oil-water separation room partition space is 1: (3～6), and oil-water separation room and gas-liquid separation chamber are mutual more than dividing plate
It is not communicated with.
Oil gas water separator the most according to claim 1, it is characterised in that: described charging distribution pipe is along dividing
Axial arranged from device tank body.
Oil gas water separator the most according to claim 5, it is characterised in that: have out on charging distribution pipe
Oilhole, a diameter of the 5 of oil outlet～30mm, spacing is 50～300mm, and oil outlet is along charging distribution
The axial horizontal both sides perforate of pipe, symmetrical.
Oil gas water separator the most according to claim 1, it is characterised in that: described water collection pipe is along dividing
Axial arranged from device tank body, water collection pipe is apart from tank bottoms 50～300mm.
Oil gas water separator the most according to claim 7, it is characterised in that: on described water collection pipe uniformly
Have collection hole, collect hole a diameter of 10～30mm, spacing is 50～300mm, collect hole be along
The direction perforate down of water collection pipe.
Oil gas water separator the most according to claim 1, it is characterised in that: described collection tube is along separator
Tank body axial arranged, collection tube distance separation device tank deck 50～300mm.
Oil gas water separator the most according to claim 9, it is characterised in that: have on described collection tube
Receiving oilhole, receive a diameter of the 5～30mm of oilhole, spacing is 50～300mm, and receiving oilhole is along collection tube
Upwardly-directed perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508479.XA CN105879430B (en) | 2014-09-24 | 2014-09-24 | A kind of oil gas water separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508479.XA CN105879430B (en) | 2014-09-24 | 2014-09-24 | A kind of oil gas water separator |
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| Publication Number | Publication Date |
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| CN105879430A true CN105879430A (en) | 2016-08-24 |
| CN105879430B CN105879430B (en) | 2018-07-06 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2012782A1 (en) * | 1990-03-22 | 1991-09-22 | Norman D. Jackson | Method and apparatus for reducing the danger of vapour flash in oil, water and gas separators |
| CN202730080U (en) * | 2012-08-06 | 2013-02-13 | 北京科安博科技有限公司 | Electro-desalting dehydrater |
| CN202849339U (en) * | 2012-08-21 | 2013-04-03 | 张敬敏 | Mechanical dehydration device for high-water-content oil |
| CN102899074B (en) * | 2012-11-05 | 2014-11-05 | 吉林大学 | Integrated shale oil separating system |
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